easy-watermark domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /home/u223937191/domains/scienceworksheets.co.uk/public_html/wp-includes/functions.php on line 6170Practice Questions
1. Define the term contamination
Radioactive contamination is the unwanted presence of materials containing radioactive atoms on other materials.
2. Define the term irradiation
Irradiation occurs when a material is exposed to ionising nuclear radiation such as alpha, beta or gamma, but does not become radioactive.
3. Using the table below, assign each example as either contamination or irradiation
| Description | Contamination or Irradiation |
|---|---|
| Radioactive waste leaking from a drum onto a concrete floor | Contamination |
| Gamma rays being used to sterilse medical equipment | Irradiation |
| Chernobyl nuclear power plant explosion | Contamination |
| A patient undergoing radiotherapy to kill a cancerous tumour | Irradiation |
Absorption and Emission of EM Radiation
JJ Thomson and Plum pudding model
Ernest Rutherford and the Nuclear Model
Niels Bohr changing the Nuclear Model
Discovering the Proton and Neutron
Measuring radiation from radioactivity
Radiation types and properties
Random nature of radioactive decay
Radioactive contamination or irradiation
Hazards of contamination and irradiation
Studies on the effects of radiation on humans